TS431BCT A3G

Overview

The TS431BCTA3G is a low-voltage, three-terminal adjustable shunt voltage reference manufactured by Taiwan Semiconductor Corporation. It operates within a voltage range of 1.24 V to 6 V and supports a cathode current range from 60 μA to 30 mA. The device features a typical output impedance of 0.2 Ω and maintains stability with capacitive loads. It includes ESD protection rated at 2 kV for the human body model and 200 V for the machine model. The temperature coefficient is specified at 100 ppm/°C. This component serves as a precise voltage reference suitable for regulating switching power supplies.

Feature Summary

• Provides low-voltage operation starting at 1.24 V
• Offers wide operating range cathode current capability
• Ensures stability with any capacitive loads
• Includes robust ESD protection mechanisms

Applications

• Regulating 3.3 V switching power supplies
• Driving optocouplers in feedback loops
• General-purpose voltage reference circuits

Procurement Notes

Verify that the ordering suffix A3G corresponds to the specific tape and reel packaging configuration required for your assembly process. Confirm the package type matches your PCB footprint design. Ensure the manufacturer designation aligns with your supply chain requirements. Cross-reference the part number with official datasheets to validate electrical specifications before integration.

Selection Notes

Select this component when designing circuits requiring operation below standard 2.5 V references. It is appropriate for applications needing lower cathode currents compared to TL431 alternatives. Consider its suitability for driving optocouplers in isolated power conversion topologies. Evaluate its performance against system requirements for output impedance and temperature stability.

Part Context

This device belongs to the TS431 family of programmable shunt voltage references. It shares functional similarities with industry-standard parts like the TL431 but offers improved performance at lower voltages. The TS431 series is designed to replace older references in modern low-voltage power management designs. It provides a cost-effective solution for precision voltage regulation tasks.

Replacement Considerations

The TS431BCTA3G may serve as a drop-in replacement for TL431 variants in many applications. Verify pin compatibility and thermal characteristics during substitution. Check if the lower minimum operating voltage meets the specific circuit constraints. Ensure the replacement part meets all necessary automotive or industrial qualification standards.